BoilerFaultCodesWhat the manual says
Manufacturer manualWaitingperiod:Lowwaterpressureinthecircuit(flow/returnspreadtoolarge)
Shared across the Ultimate 3 range
This code is shared by the boilers in this range, which use the same control board. It may not be printed in this exact variant’s manual.
DIY fix possible
Check the pressure gauge on the front of your boiler; if it is below 1.0 bar, you need to top it upLocate the filling loop (usually two silver taps connected by a braided hose) underneath the boilerOpen the taps slowly to let water in until the needle reaches 1.5 bar, then turn both taps off tightly
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Related fault codes
All 159 fault codes on the Ultimate3 Combi
Seeing a different code? Every code this model can display, in one place.
d.00d.01d.02d.04d.05d.06d.07d.08d.09d.10d.11d.13d.14d.15d.16d.17d.18d.19d.20d.21d.22d.23d.24d.25d.27d.28d.31d.33d.34d.35d.36d.39d.40d.41d.43d.45d.47d.50d.51d.58d.60d.61d.62d.64d.65d.66d.67d.68d.69d.70d.71d.73d.75d.77d.80d.81d.82d.83d.84d.85d.88d.90d.91d.93d.94d.95d.96F.00F.01F.10F.11F.13F.20F.22F.23F.24F.25F.27F.28F.29F.32F.49F.61F.62F.63F.64F.65F.67F.68F.70F.71F.72F.73F.74F.75F.77F.78F.83F.84F.85F.86F.87F.88F.89F.97F2F22P.01P.02P.03P.04P.05P.06P.07Pump OverrunS.0S.01S.02S.03S.04S.05S.06S.07S.08S.10S.11S.13S.14S.15S.16S.17S.20S.21S.22S.23S.24S.25S.26S.27S.28S.30S.31S.32S.33S.34S.39S.41S.42S.46S.53S.88S.91S.96S.97S.98S.99S.108S.109